Home / 345,996.60-518,897.70-109,411.80

Finding the Fourth Proportional to 345,996.60, 518,897.70 and 109,411.80

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Solution

The fourth proportional to 345,996.60, 518,897.70 and 109,411.80 is: 164,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,996.60 : 518,897.70 = 109,411.80 : x
  2. Step 2: Convert to fraction form
    345,996.60/518,897.70 = 109,411.80/x
  3. Step 3: Cross multiply
    345,996.60x = 518,897.70 × 109,411.80
  4. Step 4: Simplify right side
    345,996.60x = 56,773,531,372.86
  5. Step 5: Solve for x
    x = 56,773,531,372.86/345,996.60
  6. Step 6: Final answer
    x = 164,086.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.